Icom IC-R71 HF Receiver
After moving house recently I bought an Elad FDM-S1 SDR receiver but was so convinced that it was generating too much noise I sold it and bought a nice looking Icom IC-R71 thinking that analogue would solve my noise problem.
I discovered that the noise level was just the same no matter where I placed my Wellbrook. After a week of searching for the source I discovered it was coming from my FR24 ADS-B receiver power supply and the not so low loss coax cable. After replacing both the noise levels on the feed line of the loop are now much, much lower.
So, what do I think of the Icom? Well, despite losing the Elad I find the Icom very much to my liking, not reliant on a computer to run it the audio on SSB is very good and even better with a pair of Sennheiser headphones!
Since my receiving habits are confined to HF aero I find little reason to change and twiddle with the knobs so essentially I have the pre-amp on full time, wide filter in, narrow filter out, noise blanking up full, AGC on Slow, PBT centred and notch off unless a heterodyne is bothering me.
I have 30 of the 32 memories set up but could do with more as I’ve no HFDL frequencies stored as these take up about 40 channels for any given day and could change at any time so without access to about an extra 100 memories I just leave them out use my own memory to recall.
The receiver is powered by 12 volts to alleviate additional heat which causes frequency and BFO drift but despite this the display still reads about 380Hz high. One day I might get it to a shop for alignment. Also the battery backup has been taken care of with the Italian made IK2RND RAM board fitted prior to purchase.
On the whole I am very pleased with it although the biggest drawback is the size of it on my desk!